Notify Windows Shell after making Chrome default interactively

chrome/installer/util/shell_util.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
 // This file defines functions that integrate Chrome in Windows shell. These
 // functions can be used by Chrome as well as Chrome installer. All of the
 // work is done by the local functions defined in anonymous namespace in
 // this class.
 
 #include "chrome/installer/util/shell_util.h"
@@ skipping 592 matching lines @@
 // It is required that Chrome be already *registered* for the given protocol.
 bool LaunchSelectDefaultProtocolHandlerDialog(const wchar_t* protocol) {
   DCHECK(protocol);
   OPENASINFO open_as_info = {};
   open_as_info.pcszFile = protocol;
   open_as_info.oaifInFlags =
       OAIF_URL_PROTOCOL | OAIF_FORCE_REGISTRATION | OAIF_REGISTER_EXT;
   HRESULT hr = SHOpenWithDialog(NULL, &open_as_info);
   DLOG_IF(WARNING, FAILED(hr)) << "Failed to set as default " << protocol
       << " handler; hr=0x" << std::hex << hr;
-  return SUCCEEDED(hr);
+  if (FAILED(hr))
+    return false;
+  SHChangeNotify(SHCNE_ASSOCCHANGED, SHCNF_IDLIST, NULL, NULL);
+  return true;
 }
 
 // Launches the Windows 7 and Windows 8 application association dialog, which
 // is the only documented way to make a browser the default browser on
 // Windows 8.
 bool LaunchApplicationAssociationDialog(const string16& app_id) {
   base::win::ScopedComPtr<IApplicationAssociationRegistrationUI> aarui;
   HRESULT hr = aarui.CreateInstance(CLSID_ApplicationAssociationRegistrationUI);
   if (FAILED(hr))
     return false;
@@ skipping 827 matching lines @@
       chrome_exe.c_str(),
       shortcut.c_str(),
       chrome_path.c_str(),
       arguments.c_str(),
       description.c_str(),
       icon_path.c_str(),
       icon_index,
       dist->GetBrowserAppId().c_str(),
       ConvertShellUtilShortcutOptionsToFileUtil(options));
 }